Genelec SE User Manual

SE™ Small Environment System Operating Manual

AutoCa

GENELEC SE™ SMALL ENVIRONMENT DSP SYSTEM

OPERATING MANUAL

Do not attempt to operate the system without ﬁrst becoming acquainted with this manual.

Genelec Document D0082R001. Copyright Genelec Oy 9.2007. All data subject to change.

Contents

INTRODUCTION .................................................................................................................. 8

GLOSSARY.......................................................................................................................... 9

SYSTEM PARTS

8130A Loudspeaker Delivery Content 13 SE7261A Subwoofer Delivery Content 13 GLM.SE™ DSP Loudspeaker Manager Package Delivery Content 13 GLM.SE™ DSP Multiroom Expansion Package Delivery Content 14

LOUDSPEAKERS ................................................................................................................ 15

Two-way Loudspeakers (8130A) 15 Subwoofer (SE7261A) 16

PLACING LOUDSPEAKERS IN THE MONITORING ROOM

Full-Bandwidth Loudspeaker Placement 18 Subwoofer Placement 19 Multi-Channel System Layout 20

GETTING STARTED

Quick Course to System Basics 23 Step-By-Step System Setup for GLM.SE™ Control Network Use 25 Step-By-Step System Setup for Stand-Alone Use 25

GENELEC LOUDSPEAKER MANAGER GLM.SE™

Overview 26 GLM.SE™ Control Network 27 Installing the GLM.SE™ Software 29 Running the System Setup Wizard 29

.................................................................................................................. 13

.............................................. 18

............................................................................................................ 23

.......................................................... 26

AUDIO CABLING

GLM.SE™ Rapid Cabling Presets 33

................................................................................................................. 30

SYSTEM SETUP WIZARD ................................................................................................... 40

Wizard Introduction 40 Rapid Cabling Wizard 41 Manual Cabling Wizard 44 Saving the Setup 50

ACOUSTICAL SETUP WIZARD

.......................................................................................... 51

AutoCal™ - Theory of Operation 52 Setting up for AutoCal™ 52 Running AutoCal™ 56 Symmetrical Placement EQ™ 58 Subwoofer Phase Alignment Using the AutoPhase 60 Editing AutoCal™ Settings Manually 61 Storing Settings Permanently Into the SE7261A 62

BASIC USE OF THE GLM.SE™

.......................................................................................... 63

GLM.SE™ Main Page 63 Mute All and Bypass BM 64 Volume Control 64 Level Presets 66 Access to the GLM.SE™ System Setup Editors 66 Information Data Banner 67 Audio Channel Group Functions 67 Menu Items 68 Saving and Recalling Setups 70 Editing Audio Cabling Deﬁnitions 71 Editing Group Deﬁnitions 72 Replacing and Removing Loudspeakers in a System Setup File 74

EDITING ACOUSTIC CALIBRATIONS

............................................................................... 76

Opening the Acoustical Settings Editor 76 8130A Loudspeakers 77 Interactive Response Editor 79 SE7261A Subwoofer 82 Using the Interactive Response Editor 89

STAND-ALONE OPERATION .............................................................................................. 90

8130A Connectors and Controls 90 SE7261A Connectors and Controls 92 Stand Alone Controls (Manual) 93

FUNCTION REFERENCE

.................................................................................................... 98

Genelec AutoCal™ 98 SE7261A Online 98 Load Setup 99 Wizard Introduction 100 Rapid Cabling Preset Selection 101 Loudspeaker Marking 102 Storing the Acoustic Settings in GLM.SE™ 103 Recalling the Acoustic Settings in GLM.SE™ 104 System Audio Connections 105 Manual Cabling 105 Rapid Cabling 106 Signal Format 107 Audio Cable Deﬁnition 107 Audio Cabling Summary 109 Loudspeaker Connection 110 Floating Level Fader 112 Reference Level Calibration 113 Shortcut Keys in the GLM.SE™ Software 115

FREQUENTLY ASKED QUESTIONS

.................................................................................. 116

Product 116 Connectivity 117 Software 119 Problems and Support 120

Index .................................................................................................................................... 122

INTRODUCTION

Congratulations and thank-you for the purchase of this Genelec SE™ DSP Loudspeaker System. This system is designed to integrate easily into the digital production environment. There are several ways to conﬁgure and operate the SE™ systems for a wide variety of high quality audio applications.

This manual addresses the Genelec Loudspeaker Manager GLM.SE™ and the proprietary Genelec loudspeaker control network, guiding step-by-step through the setup process. The SE7261A subwoofer can also be used in stand-alone mode just like any other subwoofer, but without enjoying the beneﬁts of additional ﬂexibility and versatility of the GLM.SE™.

Genelec Loudspeaker Manager Small Environment (GLM.SE™), Genelec AutoCal™, AccuSmooth, SinglePoint, Symmetrical Placement EQ, AutoPhase and MultiPoint are trademarks of Genelec Oy.

GLOSSARY

.gse ﬁle

.gtd ﬁle

3.5 mm Measurement Signal Cable

AccuSmooth

Acoustical Settings Editor

Acoustical Setup Wizard

Audio channel

Bass Management

Digital Signal Cable

Digital Thru

GLM.SE™ System Setup File

Genelec Time Data ﬁle containing the computed impulse responses of a loudspeaker or subwoofer.

A 3.5 mm stereo jack-to-jack interconnection cable used to connect the MIC OUT socket on the Network Interface to a computer’s soundcard input.

A proprietary smoothing algorithm that has a higher resolution (narrower smoothing bandwidth) at low frequencies than a standard 1/3 octave smoothing, and a similar resolution at high frequencies. This is used by AutoCal™ to ensure accurate placement of notch ﬁlters at critical bass frequencies.

A page in the GLM.SE™ that provides access to the Acoustical Settings in the loudspeaker or subwoofer. The Interactive Response Editor can also be accessed here.

A self-guided Wizard that allows for manual or automated (AutoCal™) calibration of the Loudspeaker Acoustic parameters.

Although the deﬁnition of an audio channel is rather straightforward and clear, it should not be confused with loudspeakers or audio cables in the loudspeaker system. The AES/EBU digital audio cables may carry one or two audio channels. There may be one or more loudspeakers reproducing one audio channel.

Bass Management is used to reproduce the low frequency content of audio channels over one or more subwoofers instead of loudspeakers. This can be the low frequency content from the full-bandwidth audio channels. Parts or the entire LFE audio channel can also be bass managed.

The digital signal cable carries an AES/EBU audio signal. The GLM.SE™ supports AES/EBU digital audio cables typically carrying two channels of audio.

The connector on the back of a loudspeaker used to pass the AES/EBU digital audio signal presented to the digital input connector onto another loudspeaker.

Genelec 8200A Calibration Microphone

Genelec AutoCal™

Genelec AutoPhase

Genelec Sound Card

GLM.SE™ Control Network

GLM.SE™ DSP Loudspeaker Manager Package

GLM.SE™ DSP Multiroom Expansion Package

GLM.SE™ Main Page

Network Interface / Sound card

GLM.SE™ System Setup Editor

A factory calibrated acoustic measurement microphone used for AutoCal™ system alignment.

Genelec AutoCal™ is a property of the GLM.SE™ software that utilizes built-in test signal generators inside the Genelec SE7261A Subwoofer to acoustically measure and align the loudspeaker system.

Genelec AutoPhase is a part of Genelec AutoCal™. It aligns the phase of the subwoofer in the system to the designated loudspeaker(s).

Genelec Sound Card is a high quality sound card integrated in the Network Interface device. It provides a precise frequency response measurement with Genelec 8200A Calibration Microphone and Genelec AutoCal™ function. The Sound Card is only active when AutoCal™ function is used.

The GLM.SE™ loudspeaker control network is a proprietary network allowing the setting, reading and monitoring of loudspeakers and subwoofers on the GLM.SE™ network. System setup can be achieved very rapidly by simply opening a System Setup ﬁle, which causes all system and loudspeaker settings to be automatically communicated to all loudspeakers.

The GLM.SE™ control network delivery package containing all hardware and software to build a GLM.SE™ Loudspeaker Manager environment. 8130As and SE7261As are purchased separately.

An expansion package providing a license and hardware to install the GLM.SE™ in multiple rooms within a single facility.

The face of the GLM.SE™. This page is used to access all other functions of Loudspeaker Manager.

The Network Interface is a USB device that connects the computer to the GLM.SE™ loudspeaker control network. The Genelec Sound Card is integrated in the Network Interface. The Network Interface translates communication between the computer and the control network, enabling a very large and physically long control network with multiple loudspeakers. The Network Interface isolates the private and conﬁdential messaging with loudspeakers from any public data networks and from the functioning of the computer running the GLM.SE™ software.

This page is used to access more detailed sections of the GLM.SE™ including the Acoustical Settings Editor.

GLM.SE™ Software

Group

ID Tone

IEC Mains Cable

Interactive Response Editor

Loudspeaker

Manual Cabling Wizard

Manual Controls

Microphone Holder

MultiPoint

Network Cable

Network Control Mode

Rapid Cabling Wizard

Room Response Controls

GLM.SE™ is an abbreviation for the Genelec Loudspeaker Manager. This software enables setup and control of loudspeakers on the GLM. SE™ control network through the use of system setup ﬁles, and supports fully automated loudspeaker system setup.

Loudspeakers or audio channels designated to play simultaneously.

A built-in tone in the SE7261A used to identify which loudspeaker is being communicated to.

A standard detachable mains cable used to apply mains electrical power to the loudspeaker or subwoofer.

Located in the Acoustical Settings Editor, this Editor allows for the interactive adjustment of a measured response using the Room Response Controls.

This term is used for loudspeakers that are not subwoofers. An 8130A Digital Input loudspeaker.

A self-guided Wizard that allows for more complicated and versatile System Setups not found in the Rapid Cabling Wizard.

The user interface settings on a loudspeaker or subwoofer used when in stand-alone mode.

The rubber mounting hardware to attach the Genelec 8200A Calibration Microphone to a standard microphone stand.

A method of spatial averaging used in AutoCal™ measurements, used when optimizing the Acoustical Settings.

A CAT5 cable with RJ45 connectors (type PC-to-HUB, straight not crossed wiring). This cable is also used as an Ethernet network cable. Network cables connects the Network Interface to the SE7261A subwoofer to form a network of devices that may be controlled using the GLM.SE™ software

The use of Genelec DSP loudspeakers with the GLM.SE™ software and the control network.

The GLM.SE™ contains pre-made system setups of the most typical loudspeaker arrangements. Rapid Cabling makes system setup simple and fast by allows the selection of one of these presets.

A collection of controls used to modify the loudspeaker or subwoofer response in order to improve the in-room sound quality at the listening position.

SinglePoint

Software CD

Stand-Alone Mode

Stored Settings

Subwoofer

System Setup File (.gse)

System Setup Wizard

Third-party Volume Controller

USB Cable

A measurement taken in the main monitoring position used by AutoCal™ when optimizing the Acoustical Settings.

The CD-ROM containing the install ﬁles for Genelec Loudspeaker Manager and AutoCal™.

The use of Genelec SE7261A subwoofer as an individual subwoofer, without the GLM.SE™ software and the control network.

The settings stored inside a SE7261A subwoofer. These settings are used when the loudspeaker is operated in the stand alone mode

An SE7261A subwoofer with 8 channel bass management.

Files stored on the hard drive of a computer running the GLM.SE™. Loading a System Setup File in GLM.SE™ automatically sets up all loudspeakers in the system with stored monitoring Group deﬁnitions, audio cable deﬁnitions, defaults for monitoring levels and all acoustical alignment settings.

System Setup Wizard guides the user through the process of setting up the GLM.SE™.

A peripheral device (e.g. Grifﬁn PowerMate) used to control the system volume.

A type A-B USB cable used to connect the Network Interface to a computer.

SYSTEM PARTS

The Genelec SE7261A/8130A loudspeaker system consists of

• Two-way 8130A Digital Input loudspeakers

• SE7261A Subwoofer

• GLM.SE™ DSP Loudspeaker Manager Package containing the user interface software with the Control Network Interface including the Genelec Sound Card and a factory calibrated acoustic measurement microphone for controlling the SE7261A subwoofer.

• GLM.SE™ DSP Multiroom Expansion Package

A basic working system requires only loudspeaker(s). See Getting Started.

8130A Loudspeaker Delivery Content

Contents of the Delivery Box

• Loudspeaker

• IEC Mains Cable

• 8130A Loudspeaker Operating Manual

SE7261A Subwoofer Delivery Content

Contents of the Delivery Box

• Subwoofer Loudspeaker

• IEC Mains Cable

• Network Cable

• SE7261A Subwoofer Operating Manual

GLM.SE™ DSP Loudspeaker Manager Package Delivery Content

The GLM.SE™ Genelec Loudspeaker Manager is a loudspeaker control networking system that offers capability to control all system parameters as well as the possibility for detailed acoustical alignment of every loudspeaker in the system. The use of the GLM.SE™ is warmly recommended. Genelec AutoCal™ provides the GLM.SE™ with a fully automated multi-loudspeaker system acoustical calibration capability and comes with a factory-calibrated measurement grade microphone, microphone ampliﬁer and microphone holder.

Contents of the GLM.SE™ delivery box

• Software CD

• Genelec GLM.SE™ System Operating Manual

• Quick Connection Guide

• Network Interface with a built-in calibration microphone ampliﬁer and Genelec Sound Card

• USB Cable

• Genelec 8200A Measurement Microphone

• Microphone Holder

• Measurement Signal Cable with 3.5 mm stereo plugs

GLM.SE™ DSP Multiroom Expansion Package Delivery Content

The GLM.SE™ software is sold with a site-license permitting installation into multiple rooms. The GLM. SE™ DSP Multiroom Expansion Package delivers a Network Interface and cables for installation into one additional room. Each additional room needs a multiroom expansion pack.

• Network Interface

• USB Cable

• Network Cable

LOUDSPEAKERS

This section provides a rapid overview of Genelec GLM.SE™ loudspeakers. In-depth information about the loudspeakers is available at www.genelec.com and in the Operating Manuals supplied with the loudspeakers.

Two-way Loudspeakers (8130A)

The two-way 8130A loudspeakers accept both AES/EBU digital audio and analog audio through the same connector, however in this system only a digital signal is passed from the SE7261A.

Digital Audio Input

The digital input has a ﬁxed sensitivity. Digital signals are represented relative to their maximum value, or Full Scale (FS) value. For example, -10 dBFS means that the digital audio signal level is 10 dB below the full scale or the maximum representable digital signal.

In the SE7261A/8130A signal translates to 115 dB SPL at 1 m sound pressure level. For example, a signal having -36 dBFS level produces a sound level of 79 dB SPL at 1 m. This is a technical speciﬁcation of the loudspeaker, and the Genelec Loudspeaker Manager GLM.SE™ can adjust the monitoring volume down from this level.

Digital audio sample rate can vary from 32 kHz to 192 kHz and word length from 16 to 24 bits. Only single wire-dual channel is supported.

System, the maximum theoretical audio level for a 0 dBFS digital audio input

Two-Way Loudspeaker Functional Blocks

All audio enters audio input stage where all crossover and ﬁltering takes place. The audio outputs go via digital-to-analog conversion to built-in power ampliﬁers and on to the tweeter and woofer drivers. The loudspeakers have built-in user interfaces with switches and a rotary level control on the front of the loudspeaker.

Subwoofer (SE7261A)

Digital Audio Input

The digital input has a ﬁxed sensitivity. Digital signals are represented relative to their maximum or Full Scale value. For example, -10 dBFS means that the signal level is 10 dB below the full scale or the maximum representable digital signal.

In Genelec SE7261A subwoofers, the maximum audio level of 0 dBFS translates to the theoretical 115 dB SPL at 1 m sound pressure level. For example, a -36 dBFS signal produces a sound level of 79 dB SPL at 1 m. Genelec Loudspeaker Manager GLM.SE™ adjusts the monitoring volume down from this level.

Digital audio sample rates can vary from 32 kHz to 192 kHz and word length from 16 to 24 bits. SingleWire formats are only supported. Note that there may be a valid AES/EBU signal although the signal is silent.

Subwoofer Functional Blocks

The subwoofers have AES/EBU digital audio inputs only. There are no analog audio inputs. All audio enters the DSP processor, where all signal processing takes place. The output goes via digital-to-analog conversion to the built-in power ampliﬁer and driver. High pass outputs are delivered via AES audio to the 8130As. The subwoofer has a built-in user interface with switches and rotary controls and a connection to the Genelec Loudspeaker Manager network enabling centralized management of up to 8 loudspeakers and 1 subwoofer in one installation.

PLACING LOUDSPEAKERS IN THE MONITORING ROOM

Here is a quick introduction to monitoring loudspeaker placement.

• Place the loudspeakers in their expected positions before cabling anything.

• For most applications, the two-way 8130A loudspeakers should be located within 1.7-2.5 meters (5-8 ft.) of the primary listening position.

• Attempt to place all loudspeakers at ear height for the person in the primary listening position. If a loudspeaker is higher than ear height, tilt and turn the loudspeaker toward the listening position. Genelec two-way loudspeakers feature a vibration-isolating monitor stand, the IsoPod™, which enables the positioning of the loudspeaker towards to the primary listening position.

• Aim the acoustic axis of all (turn towards the listening position) and vertically (tilt towards the listening position).

• Position subwoofer close to the wall(s).

• Remember that all audio cables must go to the subwoofer ﬁrst and then to the loudspeakers. Make sure that enough cable length is available to move the subwoofer around the room to ﬁnd a location of optimal performance.

The following sections provide more detailed information about placing loudspeakers in a monitoring environment.

Full-Bandwidth Loudspeaker Placement

Minimum Distance From a Wall Behind a Loudspeaker

Genelec two-way 8130A loudspeakers should be placed so that a minimum distance of 5 cm (2”) is left behind the loudspeaker for ampliﬁer cooling and rear opening reﬂex port sound radiation.

loudspeakers towards the main listening position both horizontally

Low Frequency Cancellations

In general, when a loudspeaker’s front bafﬂe is more than 0,3 meters (1 foot) away from the wall behind the loudspeaker, a reﬂection from this wall can cause a cancellation of low frequencies and hence reduction of bass output. For two-way loudspeakers, low frequency cancellations in the 40 – 80 Hz frequency range should be avoided. Cancellations in the 80 - 200 Hz range should also be avoided if possible.

Recommended Distances

Translating this into distance recommendations shows that loudspeakers can be placed close to a wall at a distance less than 1 meter (3 ft.). Distances between 1 and 2.2 meters (3-7 ft.) should be avoided.

Loudspeakers placed more than 2.2 meters (7 ft.) away from walls may suffer from cancellations around the low frequency cut-off of the loudspeaker limiting low frequency bandwidth. As a rule of thumb, the

Recommended distances from a single wall to the front bafﬂe of free-standing loudspeakers. Correct (green), acceptable (orange) and not recommended (red).

lower the low frequency cut-off the further away the loudspeaker must be placed from the wall in order to avoid this phenomenon.

Distances to the ceiling and other walls may be shorter than the distance to the wall behind a loudspeaker. Reﬂections from these surfaces may be important and should also be considered.

Subwoofer Placement

Subwoofers can make life much easier in producing high quality low frequency energy. When a subwoofer is used, the loudspeakers can be placed more freely, thereby allowing more ﬂexibility in ﬁnding a good location in the room for the reproduction of low frequencies.

A subwoofer should be placed close to a wall, preferably closer than 0.6 meters (2 ft.) from a wall. This placement eliminates most possible cancellation sources and the subwoofer response remains ﬂat and well loaded.

Recommended distances from a single wall to the front bafﬂe of loudspeakers combined with subwoofer(s). Correct (green), acceptable (orange) and not recommended (red).

Using a subwoofer provides an additional crossover frequency (typically at 85 Hz). This makes placing loudspeakers much easier. Acceptable distances extend to 1.1 m because of the low frequency cut-off of loudspeakers. Loudspeakers may be placed between 1.1…2 m without serious compromises due to the wall behind the loudspeaker causing serious cancellation effects.

Although Genelec subwoofers provide accurate phase control at the crossover point, loudspeakers should not be placed further than 2 m (7 ft.) from a supporting subwoofer. Larger distance differences may cause tonal balance differences around the crossover frequencies due to loudspeakers and subwoofer(s) exciting different room modes.

Multi-Channel System Layout

The positioning of tables, screens, racks, etc, is critical in order to maintain accurate imaging. Early reﬂections can smear the sound image and compromise localization. To avoid this, reﬂecting surfaces between loudspeakers and the listening position should be minimized. Symmetrical positioning of equipment is essential. Even with symmetry, reﬂecting surfaces should be removed from the vicinity of acoustic paths.

Front Loudspeaker, Multi-Channel Layout

For multi-channel audio the Left and Right loudspeakers should be placed 60 degrees apart, with the Center loudspeaker in the middle. All loudspeakers should be of the same type so there are no coloration changes when panning sounds across the front stage.

Left ﬁgure: Example of non-symmetrical layout producing reﬂections from computer screens and table surface totally different for different loudspeakers. This situation creates front-back and left-right localisation smearing. Right ﬁgure: Symmetrical layout minimizes reﬂection surfaces and maintains accurate localisation because reﬂections are similar due to symmetry.

Recommended loudspeaker positioning for 5.1 multi-channel audio reproduction.

Surround Loudspeakers

Surround loudspeakers should be placed in a positional window between ±100 to ±120 degrees from the centerline. If more than two loudspeakers are used an equal number of loudspeakers should be placed symmetrically on both sides of the center line, on a circle between ±60 to ±150 degrees. Most recording engineers choose ±110…130-degree position for a surround stereo pair.

System Location In the Room

It is important that the multi-channel installation is symmetrically located in the room. Reﬂections created by boundaries should be identical from left to right so that spatial information and panning of sources remains stable. It is also recommended that the listening position be located in the front half of the room so that the direct sound level is maximized relative to the reverberant energy in the room.

Aiming of Acoustical Axis

All loudspeakers should be aimed towards the engineer’s listening position.

GETTING STARTED

Quick Course to System Basics

Control network and audio cabling are separate. The ﬁrst observation to be made is that audio signals and control information travel along different cables. This has the inherent advantage of allowing one to operate the system with the control network (known as the network control mode) or without the control network if so desired (known as the stand-alone mode).

When using the Genelec loudspeaker control network, full control to all features in a loudspeaker become available. Attaching the control network automatically puts the system in the network-controlled mode.

Digital Audio

8130A active loudspeakers and SE7261A subwoofers have AES/EBU digital audio inputs. Run the AES/ EBU audio cable(s) to the subwoofer ﬁrst, then onto the main loudspeakers. The AES/EBU cable carries two digital audio channels, run another cable from the “Thru” output of the loudspeaker to the input of the next loudspeaker.

If the audio source has a volume control for the AES/EBU digital audio, it can be used to control the monitoring level.

If the AES/EBU outputs are ﬁxed level line-outs, various volume controls options are available in the GLM. SE™ loudspeaker control software.

The GLM.SE™ software provides several volume control faders on the computer display. These volume controls can be used in the same computer running audio processing or recording software.

Third-party volume control knobs (for example Grifﬁn PowerMate) that attach to a USB interface can also be used to control the monitoring level through the GLM.SE™ software and the Genelec loudspeaker control network.

Stand-alone mode refers to using the SE7261A subwoofer without the GLM.SE™ Control Network.

When calibrating the DSP two-way loudspeakers one can select to use the same switch-based acoustic alignments that can be found on the analog loudspeakers, or to use a much more versatile set of room response controls available through the GLM.SE™ loudspeaker control software.

The GLM.SE™ software runs on any Windows XP computer. The Network Interface connects the computer to the SE7261A. Using the GLM.SE™ software provides full access to all room response controls. After aligning the system acoustically, it is possible to store these settings in the GLM.SE™ software Setup File or inside the SE7261A memory.

Step-By-Step System Setup for GLM.SE™ Control Network Use

The Genelec GLM.SE™ DSP System uses a networking concept for controlling a multi-channel system. A control network cable is provided with all Genelec GLM.SE™ systems.

To setup quickly, follow the steps detailed below. For further information consult the sections of this manual mentioned in each step.

• Unpack and position the loudspeakers. See the “Loudspeaker Placement” section for details.

• Find the Genelec Control Network cables in the SE7261A delivery box. Connect the control network. See the “Genelec control network cabling” section for details.

• Find the Network Interface and follow cabling instructions. See the “GLM.SE™ Network Interface Device” section for details.

• Label and connect

• Launch GLM.SE™, then follow the on-screen instructions to complete a System Setup. Select either Rapid Cabling Mode or Manual Cabling Mode and follow the instructions.

• Select the appropriate Rapid Cabling preset in the GLM.SE™ and launch the Rapid Cabling Wizard. See the “Rapid Audio Cabling” section for details.

• To acoustically align the system, run the Acoustic Setup Wizard in the GLM.SE™. See the “Acoustic Setup Wizard” section for details.

• Congratulations! Setup is now complete!

A more detailed system setup procedure can be found in the section describing the System Setup Wizard.

the audio cables. See the “Audio Cabling” section for details.

Step-By-Step System Setup for Stand-Alone Use

Stand-Alone Use

Genelec DSP loudspeakers can be used like any other loudspeaker system, without the GLM.SE™ control network. This is known as stand-alone use.

• Note that when a 8130A loudspeaker detects a valid AES/EBU word clock, the system will sync and run in the digital input mode.

• DSP subwoofers only have digital audio inputs and can be used in stand-alone mode running AES/EBU-digital audio.

• For more information on setting up and using loudspeakers in stand-alone mode, see the section on stand-alone operation.

GENELEC LOUDSPEAKER MANAGER GLM.SE™

Overview

The Genelec Loudspeaker Manager GLM.SE™ is the control software for Genelec DSP loudspeaker systems. The GLM.SE™ runs on a personal computer.

The GLM.SE™ knows when an SE7261A subwoofer is present on the control network and provides access to all settings and system level controls.

The GLM.SE™ connects solely to a single SE7261A and offers control of everything within the subwoofer’s DSP. This includes controls built into the high and low pass outputs as well as full system controls including monitoring volume, mute/solo for audio channels, audio channel Group selection and more.

All settings can be collectively stored into the computer as a System Setup File. Loading a System Setup File recalls all system level settings and sets all settings for all loudspeakers, including acoustic calibration.

Using the GLM.SE™, all acoustic settings can also be stored into the SE7261A for stand-alone use.

The basic structure of a GLM.SE™ Control Network has the following components

• Computer running the GLM.SE™ software.

• One USB port of the computer connected to the Network Interface.

• The Network Interface.

• Network cable connected to the SE7261A subwoofer.

GLM.SE™ software communicates only with the SE7261A subwoofer. All digital signal processing controlled by GLM.SE™ software is contained in the SE7261A.

GLM.SE™ Control Network

Network Interface

The Network Interface serves as the communicator between the SE7261A on the control network and the computer. Attach the Network Interface to a USB port. The device driver is installed automatically.

The USB cable runs from the computer to the Network Interface. Once the Network Interface is connected to the computer ﬂashing lights on the interface indicate that the network is active. If no communication lights are ﬂashing, check that the control network cable and the USB cable are securely attached and the GLM.SE™ software is running.

The GLM.SE™ network runs on CAT5 cables. These are the same cables that are used for Ethernet. Instead of using Ethernet for communication with the SE7261A, Genelec uses a proprietary protocol deﬁning the method of communication between the SE7261A and the Network Interface that connects to the USB port on the computer.

There are several important reasons why a USB interface is used instead of, for example, the Ethernet. This keeps the network running at all times, even if the computer crashes. The Network Interface acts as the master controller on the network, and communicates to all aspects of the SE7261A, even if the computer is rebooting.

The Genelec network uses a proprietary communication protocol to ensure integrity of communication to and from the SE7261A. The Network Interface is used as a translator between the Genelec control network and any computer hardware using it. This ensures that loudspeaker control trafﬁc remains insulated and secured from any public networks. This is necessary because of the possibility of congestion on public networks (loudspeaker control messages do not get through), and in order to limit the range of access (outsiders on a public network could possibly control the loudspeakers).

The USB interface is ubiquitous in the computer world. A USB cable run is normally limited to 5 m (15 ft.), but this is not a problem. The computer network cable from the Network Interface can extend to any practical distance needed. If the Network Interface cannot be placed close the computer the USB cable can be extended with actively buffered cables up to 25 meters (75 ft.) in length.

Note

If the Network Interface is disconnected or the computer is powered down, the GLM.SE™ software will no longer control the SE7261A. In that event, the system maintains its current settings until the subwoofer is powered down or the “STORED” dip switch on the SE7261A is moved.

When the loudspeakers are re-powered and the GLM.SE™ software is not controlling the network, the SE7261A subwoofer obtains acoustic settings based either on the user interface controls on the subwoofer (manual controls) or from its internal memory (stored settings). This choice is determined by the position of the switch marked “STORED/MANUAL CTRL” on the SE7261A connector panel.

GLM.SE™ Control Network Cabling

Control comes from the computer running the GLM.SE™ software. The computer connects to the Network Interface via the USB port (a 1.5-meter USB cable is provided). The Network Interface connects onwards to the SE7261A using the provided network cable. No other network connections are needed since the SE7261A does all the DSP processing.

Consider an example with ﬁve 8130A loudspeakers and one SE7261A subwoofer. The digital audio uses AES/EBU cabling where each physical audio cable carries two channels of digital audio. All audio cables run to the subwoofer ﬁrst and then to the 8130A loudspeakers. The GLM.SE™ Control Network starts from the USB port of the system-controlling computer, runs through the Network Interface and onwards to the SE7261A.

Installing the GLM.SE™ Software

Put the software CD in the CD-ROM drive of the computer. The installation will start automatically. Follow the on-screen instructions.

Running the System Setup Wizard

The System Setup Wizard is a self-guiding program designed to make the installation process easy and complete.

The basic ﬂow of setting up the system is detailed below. Consult the sections of this manual mentioned in each step for further details. Before running the System Setup Wizard, make sure that all audio source equipment output levels are turned down.

• Unpack and position the 8130A loudspeakers. See the “Loudspeaker Placement” section for details.

• Find the Genelec Control Network cable in the SE7261A delivery box. Connect the control network. See the “Genelec control network cabling” section for details.

• Find the Network Interface Device and follow cabling instructions. See the “Network Interface Device” section for details.

• Find the software CD in the Genelec Loudspeaker Manager package, insert it in computer and follow on-screen instructions to install Genelec Loudspeaker Manager GLM.SE™ on the computer. See the “GLM.SE™ Genelec Loudspeaker Manager” section for details.

• Label and connect the audio cables. See the “Audio Cabling” section for details.

• Launch the GLM.SE™, then follow the on-screen instructions to complete a System Setup. Select either Rapid Cabling Mode or Manual Cabling Mode and follow the instructions.

• If there is no applicable Rapid Cabling Preset, select the Manual Cabling Wizard. See the “Manual Audio Cabling” section for details. Plan all cabling according to the guidelines provided in this section. Plan channel labeling and loudspeaker labeling and launch the Manual Cabling Wizard.

• To acoustically align the system, run the Acoustic Setup Wizard in the GLM.SE™. See the “Acoustic Setup Wizard” section for details.

• Use the fully automated alignment system AutoCal™ built into the Acoustic Setup Wizard.

• Finally Save the System Setup and study the basic use of the GLM.SE™.

Once the network cabling is complete, turn on all the loudspeakers. From the computer, launch the Genelec Loudspeaker Manager by clicking on the Genelec Loudspeaker Manager icon.

AUDIO CABLING

Always plan your audio cabling and label the cables before connecting them and running the System Setup Wizard. It is suggested that the digital audio cables are labeled using the following convention: “AES/EBU Channel number and Sub-frame – Loudspeaker location.” For example: “AES/EBU 1A – Front Left”

XLR Connector Pin Assignments for AES/EBU Signals

For digital applications cables speciﬁcally designed to carry high-speed digital audio should be used. This cable should have 110-ohm characteristic impedance. Do not use standard microphone cable intended for analog signals, as it does not have good performance for digital audio applications and may result in poor digital audio performance, especially for longer cable runs.

The inputs will sync for sample rates from 32 kHz to 192 kHz Single-Wire signals. Since AES/EBU audio is typically transmitted in audio channel pairs (Channel A and B), connections will have to be made from one loudspeaker to another. This is accomplished via the output connectors in the SE7261A subwoofer and by daisy-chaining the 8130As using the THRU connector on the back of the loudspeakers. Typical pairing in a two-channel stereo AES/EBU bit-stream has the Left audio channel carried in the AES/EBU sub-frame A and Right audio channel carried in the AES/EBU sub-frame B. The digital audio cable can go to either loudspeaker ﬁrst. Select which sub-frame to reproduce by manually selecting Channel A or B on the back of the 8130A loudspeaker.

MAKE SURE ALL AUDIO CABLES ARE LABELED BEFORE STARTING THE CABLING PROCEDURE!

Stereo Setups

Digital audio cabling MUST go from source to the SE7261A subwoofer ﬁrst, then to the 8130As, to either loudspeaker ﬁrst, then on to the next using the THRU connector. Freely connect to either loudspeaker ﬁrst.

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